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saw5 [17]
3 years ago
5

The two major cell types in a sponge's tissues are

Biology
1 answer:
Delvig [45]3 years ago
3 0

Answer: B. collar cells and amoebocytes

The collar cells have a funnel like collar and a flagellum. Collar cells whip their flagella to make water go through the sponge. Then the water brings nutrients and oxygen, while while also taking out waste and carbon dioxide.

Amoebocytes first deliver nutrients from choanocytes to the other cells, giving rise to eggs. Then they bring phagocytized sperm from choanocytes to eggs.

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When apparent competition occurs, the:
artcher [175]

Answer:

The correct answer is:

population of the predator species is larger and the populations of the prey species are smaller. (C)

Explanation:

apparent competition occurs occurs between two species or group of organisms that do not directly compete for resources affect each other indirectly by being prey to the same predator. For example consider three species of organisms; sparrows, earthworms and beetles, where earthworms and beetles are preys of the sparrows, an increase in the population of earthworms will in the long term lead to an increase in the population of sparrows, which means that more predators will be available, leading to a decrease in the population of beetles, because more predators are available to prey on them. Also a decrease in the population of earthworms will also lead to a decrease in the population of beetles because their probability of being seen by the predators will increase leading to an increase in their killing.

Therefore in apparent competition, although it occurs between two prey species, their in an increase in the number of predators and a decrease in the population of the prey.

3 0
3 years ago
PLEASE HELP! (c) Complete the table to represent the relationship between volume and surface area of a spherical structure surro
Anuta_ua [19.1K]

Answer/Explanation:

Recall:

Volume of a sphere = ⁴/3πr³

Surface Area = 4πr²

✔️For radius (r) = 1 mm:

Volume = ⁴/3 × π × 1³ = 4.19 mm³

Surface Area = 4 × π × 1² = 12.57 mm²

Ratio of volume to surface area = 4.19 : 12.57 = 1:3

✔️For radius (r) = 3 mm:

Volume = ⁴/3 × π × 3³ = 113.1 mm³

Surface Area = 4 × π × 3² = 113.1 mm²

Ratio of volume to surface area = 113.1 : 113.1 = 1:1

4 0
3 years ago
Suppose a dominant allele (N) codes for a big nose and a recessive allele (n) codes for a small nose. Imagine that an organism r
Marta_Voda [28]

A. The organism has a large nose, because it's homozygous.


6 0
3 years ago
Which of the following structures develops into a pollen grain?
koban [17]
The answer is (c). microspore.
5 0
3 years ago
The clear, transparent layer of cells that covers the front part of the eye is called
larisa [96]

Answer:

4 Cornea

Explanation:

The cornea is the white cell covered your eyes

3 0
2 years ago
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