Help with these please?

Answers

Answer 1

Answer: I thing number 12 is a

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Classify the statements below as describing proto-oncogenes or tumor suppressor genes. 1. Some products of these genes normally function in repairing damaged DNA. 2. These genes code for proteins that normally promote cell division. 3. Mutations that increase activity of these genes may lead to cancer. 4. These genes code for proteins that normally prevent uncontrolled cell division. 5. Loss-of-function mutations in these genes may lead to cancer.
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Which of the following brought about an increase in human populations by increasing the amount of food and medicine available and decreasing the death rate:a. industrial revolutionb. world war iic. the internetd. invention of the car
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What are antibiotics and ribosomes?

This part of the cell stores wastes, water or food.a. lysosome Eliminate
b. mitochondria
c. ribosome
d. vacuole

Answers

This part of the cell stores wastes, water or food is vacuole. TThus, option D is correct.

The vacuole is an organelle found in both plant and animal cells that stores various substances, including wastes, water, and food. It plays a crucial role in regulating the cell's internal environment and maintaining cell turgor pressure in plant cells.

Lysosomes are responsible for the digestion and elimination of cellular waste materials, mitochondria are the powerhouse of the cell involved in energy production, and ribosomes are involved in protein synthesis.

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Answer:

Explanation:

What is the role of natural selection in evolution?

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Natural selection is how species evolve by adapting to their environment.

Process that takes place at mid-ocean ridgesA. Sea-floor spreading

B. Continental drift

C. Magnetic reversal

D. Magnetic minerals

E. Fossils

Answers

Answer;

-Sea-floor spreading

Sea floor spreading is process that takes place at mid-ocean ridges, evidence is found in magnetic minerals on the ocean floor.

Explanation;

-Seafloor spreading is a geologic process in which tectonic plates; large slabs of Earth's lithosphere; split apart from each other.

-Seafloor spreading and other tectonic activity processes are the result of mantle convection. Mantle convection is the slow, churning motion of Earth’s mantle. Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle’s convection currents makes the crust more plastic and less dense.

a. sea-floor spreading

Like logistic growth, exponential growth A. reaches its carrying capacity over time. B. can be plotted in the shape of an S curve. C. exhibits a period of rapid growth as the population size increases. D. is slowed by limiting factors.

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The answer is C. exhibits a period of rapid growth as the population size increases.
Logistic growth and exponential growth are types of population growth. Both types exhibit a period of rapid growth as the population size increases. But, there are some differences between these two types. Population with logistic growth reaches its carrying capacity over time, but exponential growth do not. Logistic growth can be plotted in the shape of an S-curve, and exponential growth can be plotted in the shape of an J curve. Also, logistic growth is slowed by limiting factors. When there are no limiting factors, population exhibits exponential growth.

Ventifacts are created by a process of erosion called

Answers

The correct answer to the question above is abrasion. Ventifacts are created by a process of erosion called abrasion. Ventifacts are these rocks who were abraded and polished by ice crystals or wind-driven sands. Abrasion is the process of wearing or scraping away.

Some proteins on the surface of a mammalian cell contain carbohydrates. These proteins are synthesized by _______ and the sugars are added in the _______.a) cytoplasmic ribosomes; smooth endoplasmic reticulum

b) the Golgi apparatus; rough endoplasmic reticulum

c) ribosomes on the rough endoplasmic reticulum; Golgi apparatus

d) mitochondrial ribosomes; smooth endoplasmic reticulum

e) cytoplasmic ribosomes; plasma membrane

Answers

Answer:

c) Ribosomes on the rough endoplasmic reticulum; Golgi apparatus

Explanation:

Endoplasmic reticulum, a member of endomembrane system. If it contains ribosomes on their surface, they are called Rough Endoplasmic Reticulum (RER). RER is the site for protein synthesis.

Newly formed protein undergoes modification, one such modification is the addition of carbohydrate side chains to form glycoprotein. The protein then moves to the Golgi for modification.

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