o be an effective solvent in living systems, a substance must be able to meet all BUT ONE of the following requirements, namely A) remains liquid over a wide temperature range. B) does not readily combine with lipid molecules. C) able to dissolve a great variety of chemical compounds. D) provide a safety against extremes in temperature by having a high heat capacity.

Answers

Answer 1

Answer: B) does not readily combine with lipid molecules.

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Four of the five choices listed below are characteristic of meiosis. Select the exception? involves two divisions reduces the number of chromosomes results in producing genetically identical cells produces haploid cells involves synapsis
Which of the following is a nitrogenous base?A) riboseB) guanineC) enzyme D) cysteine
A boy who has hemophilia inherited the disorder from his ____________________a. mother b. father
The planting of trees I'd detrimental to soil because it drains that soil of its nutrients true or false
Which of the following statements is true? Tsunamis are caused by seismic waves. Earthquakes create mountain chains. Erosion is always a destructive force. A gradual cooling of the interior of a volcano causes volcanic eruptions.

Unlike gradualism, punctuated equilibrium involvesa. a slow change in evolution over time.
b. stable periods of change interrupted by rapidly occurring change.
c. a steady change in evolution over time.
d. species that are said to be in equilibrium. Student Answer: C

Answers

Unlike gradualism, punctuated equilibrium involves stable periods of change interrupted by rapidly occurring change. The correct answer is B.

Unlike gradualism, punctuated equilibrium involves stable periods of change interrupted by rapidly occurring change. Correct option is b.

Unlike gradualism, which suggests a slow and continuous change in evolution over time, punctuated equilibrium proposes that species experience long periods of relative stability (equilibrium) during which there is little or no significant change. These stable periods are "punctuated" or interrupted by relatively short bursts of rapid evolutionary change. These bursts of change may result in the appearance of new species or major adaptations in response to environmental shifts or other factors.

Punctuated equilibrium, proposed by paleontologists Niles Eldredge and Stephen Jay Gould in the early 1970s, challenges the traditional view of a smooth, gradual evolution and highlights the importance of considering periods of stasis and rapid change in the fossil record.

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A physician listens to a patients chest, and then examines the patients eyes. the eyes are located chest.a. posterior
b. distal
c. medical
d. superior

Answers

D. Superior to the chest. Above

A zebra cell is just about to replicate its DNA. Which of the following will happen first?A. The DNA unravels to make two strands.
B. All of the cell's DNA attaches to proteins.
C. RNA attaches to DNA
D. The DNA folds over on itself to create a dense chromosome.

Answers

In DNA replication, the DNA unravels to make two strands.

What do you mean by DNA replication?

DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the most essential part for biological inheritance.

DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides.

Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits.

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Mangrove pneumatophore roots _______.

Answers

Pneumatophore roots allow mangroves to gather oxygen from the atmosphere even if the soil or mud their in are flooded. The mud where mangrove grows are anaerobic which has poor in oxygen. Oxygen is vital for the survival of mangroves. Some of these roots erect upward.

Answer:

Mangrove pneumatophore is the specialized root structures that are known to grow out of the water surface and help in the respiration of mangrove plants. They allow the collect oxygen from the atmosphere.

It mainly grows in mud and there the conditions are anaerobic means lack of oxygen. Oxygen is necessary for their survival that is done by the mangrove pneumatophore roots.

Junior biomedical researchers have long assumed that their hirings and promotions depend significantly on the amount of their published work. People responsible for making hiring and promotion decisions in the biomedical research field, however, are influenced much more by the overall impact that a candidate's scientific publications have on his or her field than by the number of those publications.The information above, if accurate, argues most strongly against which of the following claims?(A) Even biomedical researchers who are just beginning their careers are expected already to have published articles of major significance to the field.
(B) Contributions to the field of biomedical research are generally considered to be significant only if the work is published.
(C) The potential scientific importance of not-yet-published work is sometimes taken into account in decisions regarding the hiring or promotion of biomedical researchers.
(D) People responsible for hiring or promoting biomedical researchers can reasonably be expected to make a fair assessment of the overall impact of a candidate's publications on his or her field.
(E) Biomedical researchers can substantially increase their chances of promotion by fragmenting their research findings so that they are published in several journals instead of one.

Answers

Answer: E

Explanation:

The statement if correct argues most strongly against the claim that biomedical researchers can substantially increase their chances of promotion by fragmenting their research findings so that they are published in several journals instead of one in the sense that what counts is not the numbers of publications but it's impact. Meaning that a researcher can have several publications but yet with low impact in the field.

How is the end product of mitosis like the end product of binary fission?

Answers

Let's compare mitosis and binary fission.

Binary fission is a type of cell division characteristic for prokaryotic organisms that are unicellular. There are 4 steps in binary fission:
Step 1 Genetic material duplicates.

Step 2 Cell grows in size and other organelles duplicate.

Step 3 Cell wall or membrane forms.

Step 4 Cells separate into two new cells.

Mitosis is a process cell division, where one cell divides into two identical cells. Mitosis consists of four phases -

1. Prophase: Chromatin in the nucleus condenses and chromosomes pair up.

2. Metaphase: Chromosomes line up at the centre of the cell.

3. Anaphase: The sister chromatids separate from each other to the opposite sides of the cells.

4. Telophase and Cytokinesis: Membrane forms around each set of chromosomes on two opposite sides of the cells and cell divides into two identical daughter cells.

As can be seen, some steps are similar. And the end products in both cases are new cells. In mitosis, however, new cells are part of a multicellular organism while in binary fission, new cells represent new organisms.

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You have just eaten a meal high in complex carbohydrates. Which of the following enzymes will help to digest the meal?A. gastrin B. amylase C. cholecystokinin D. trypsin

1.During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will _______ a) move across the membrane to the outside of the cell.b) stop moving across the membrane. c) continue to move across the membrane in both directions. d) move across the membrane to the inside of the cell. 2.An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes (1 point) A) water to move into the cell. B) water to move out of the cell. C) solutes to move into the cell. D) solutes to move out of the cell. 3.Which of the following statements is true? (1 point) A) During active transport, a material may be moved from an area of low concentration to an area of high concentration. B) During passive transport, energy is used to move material against a concentration gradient. C) During active transport, water is pumped across a membrane to equalize the concentration of salts on both sides. D) During passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.