Which best describes the carrying capacity in an ecosystem?A. the number of organisms moving in and out of a population
B. the amount of habitat areas that are availabláin a given area
C. the amount of resources that are needed by a population of organisms
D. the number of individual organisms the environment can support in a given area

Answers

Answer 1
Answer:

Answer:

b

Explanation:

the carrying capacity is how much so the amount of habitat space would be the capacity

Answer 2
Answer:

Answer:

the number of individuals organism the environment can support in a given area


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Before a cell can divide, it must copy one ___ at a time in a process called DNA replication

10. The organ that stores swallowed food and liquid, mixes up digestive juices withthe food and liquid, and sends it to the small intestine.
A. Mouth
C. Stomach
B. Rectum
D. Intestines​

Answers

Answer:

Stomach

Explanation:

Stomach is the organ that stores swallowed food and liquid, mixes up digestive juices withthe food and liquid, and sends it to the small intestine.

Answer:

stomach

Explanation:

stomach is the answer pal

The scales of female pine cones produce a sticky substance. what function might this serve?

Answers

male pine cones:
they do not have any sticky substance...
also they produce pollens...
female pine cones:
they have the sticky substance to catch the pollen produced by male pine cones...

[HELP ASAP]Proteins are made up of long chains of which of these building blocks?

a. saccharides
b. nucleotides
c. fatty acids
d. amino acids

Answers

Answer:

amino acids

Explanation:

Saccharides are for polysaccharides

Nucleotides are for DNA

Fatty acids are for lipids

Amino acids line up in a chain during translation into a protein.

Final answer:

Proteins are made up of long chains of building blocks called amino acids. There are 20 different amino acids that can be combined to create a protein. The sequence of these amino acids determines the protein's structure and function.

Explanation:

Proteins, which are integral to bodily processes, are composed of long chains of building blocks known as amino acids. There are 20 different types of amino acids that can be combined to make a protein. The sequence of the amino acids determines the structure and function of each protein. Unlike saccharides, which make up carbohydrates, nucleotides that build up nucleic acids, and fatty acids which are the building blocks of lipids; amino acids are unique in their role as the building blocks of proteins.

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Please match the following

Answers

Answer:

1. Ovary

2. uterus

3. Testosterone

4. Ovum

5. Fallopian Tubes

6. Estrogen

7. Scrotum

8. Puberty

9. Reproductive system

10. Testis

Explanation:

The numbers correspond with the left column.

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In coupled reactions, the energy released by a(n) ____________ is used to drive a(n) ____________ . ATP breakdown is often coupled to cellular reactions that require an input of energy.

Answers

Answer: Exergonic reaction; Endergonic reaction

In coupled reactions, the energy released by an exergonic reaction is used to drive an endergonic reaction. ATP breakdown is often coupled to cellular reactions that require an input of energy.

Explanation:

Cellular reactions include Exergonic and endergonic reactions. An exergonic reaction is one that occurs spontaneously and brings about the release of energy (in form of ATP). On the other hand, an endergonic reaction proceeds only with the input of energy.

Thus, exergonic reactions are usually coupled to endergonic reactions

Final answer:

In coupled reactions, the energy from an energy-releasing exergonic reaction, like the breakdown of ATP, is used to drive an energy-requiring endergonic reaction. These reactions usually occur together in a cell.

Explanation:

In coupled reactions, the energy released by a exergonic reaction is used to drive an endergonic reaction. An exergonic reaction is a chemical reaction where energy is released, often in the form of ATP (Adenosine Triphosphate). On the other hand, an endergonic reaction requires energy to proceed.

In a cell, these types of reactions often happen together (or are coupled) so that the energy released by an exergonic reaction, like the breakdown of ATP, gets immediately used to power an endergonic one, such as the synthesis of cellular components or the transport of molecules across the cell membrane.

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Some green algae exhibit alternation of generations. All land plants exhibit alternation of generations. No charophytes exhibit alternation of generations. Keeping in mind the recent evidence from molecular systematics, the correct interpretation of these observations is that:_________ A) charophytes are not related to either green algae or land plants.
B) plants evolved alternation of generations independently of green algae.
C) alternation of generations cannot be beneficial to charophytes.
D) land plants evolved directly from the green algae that perform alternation of generations.
E) scientists have no evidence to indicate whether or not land plants evolved from any kind of alga.

Answers

Final answer:

Recent molecular evidence suggests that land plants evolved directly from the type of green algae that performs alternation of generations. This trait was likely beneficial and thus retained in all land plants.

Explanation:

The correct interpretation of the given observations is D) land plants evolved directly from the green algae that perform alternation of generations. Molecular systematics evidence suggests a close relationship between charophytes (a type of green algae) and land plants, however, charophytes do not exhibit alternation of generations. This implies that the trait arose after the divergence of charophytes and the lineage that led to land plants. Once land plants appeared, all of them possessed the capacity to undergo alternation of generations, suggesting this trait was beneficial and retained in the subsequent evolution.

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Final answer:

Taking into account recent molecular systematics evidence, it is inferred that land plants evolved from the type of green algae that execute alternation of generations.

Explanation:

Based on the given information and considering the latest evidence from molecular systematics, it can be inferred that land plants evolved directly from the green algae that perform alternation of generations. This conclusion is drawn from the fact that both green algae (some species) and all land plants show the alternation of generations, a complex lifecycle involving two distinct multicellular stages. Charophytes, despite being a group of green algae, don’t display this trait, suggesting a different evolutionary pathway.

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