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galben [10]
3 years ago
11

The main job of cell ___ is to control what enters and exits cells. When doing its job normally, cell membranes maintain ____

Biology
2 answers:
kondor19780726 [428]3 years ago
8 0

Blank 1: Cell membrane

Blank 2: Homeostasis

Explanation: The cell membrane controls what comes in and comes out. For example, the cell membrane will keep harmful organelles out, and helpful cells in. The cell membrane acts like a security officer, meaning it keeps out harmful organelles and keeps in organelles that is supposed to go in it. Homeostasis is the balance within the cell or the body. The cell is responsible to keep a constant environment internal environment.

vitfil [10]3 years ago
7 0

Answer:

membrane

homeostatis

Explanation:

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two pure breeding lines of pea, one tall and hairy, the other short and smooth, are crossed. the f1 hybrid is tall and hairy. th
wolverine [178]

The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups.

<h3>How do phenotypic classifications work?</h3>

The genotypes A B_, A bb, aaB_, and aabb are matched to the four phenotypic groups. If any of the single homozygous recessive genotypes (i.e., A bb or aaB_) exhibits the same phenotype as the double homozygous recessive (aabb), then a 9:3:4 phenotypic ratio will result.

<h3>What does phenotypic classification entail?</h3>

phenotype, all of an organism's observable traits that emerge from the interaction of its genotype (total genetic inheritance) and environment. Observable features include things like behavior, biological characteristics, colour, shape, and size.

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8 0
1 year ago
You cross two true-breeding parents (one with yellow seeds and one with green seeds), grow and self-pollinate the F1 generation,
Andru [333]

Answer:

1500

Explanation:

Let's assume that the allele for yellow seed color is "Y" and the allele for green seed color is "y". Genotype of pure breeding yellow seeded plant would be "YY" and that of the green seeded plant would be "yy". A cross between YY and yy gives all heterozygous yellow seeded plants (Yy) in F1 progeny. Self pollination of two F1 plants (Yy x Yy) obtains F2 generation in 3 yellow: 1 green ratio.

The total population size of F2 generation = 2000

The proportion of yellow seeded plants in F2 generation = 3/4 (since the F2 phenotype ratio is given 3 yellow: 1 green)

Therefore, total number of yellow seeded plants in F2 progeny = 3/4 x 2000= 1500

3 0
3 years ago
Which of the following statements is true of all organisms in every environment?
Pani-rosa [81]

Answer: C

Explanation: All organisms someway somehow must compete for essential resources.

7 0
3 years ago
6. Marcus's genotype for eye color is bb. Olivia has brown eyes, but she is heterozygous for the trait.
Sidana [21]

Answer:

i believe that the awnser is A

Explanation:

6 0
3 years ago
Read 2 more answers
Q1) Describe three ways food chains can be disrupted​
GenaCL600 [577]

Answer:

Explanation:

Causes for Disruptions in the Food Web

Overpopulation.

Water pollution.

Acid rain.

Climate change.

Air pollution.

Illegal hunting.

Soil pollution.

Illegal dumping.

4 0
3 years ago
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