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zimovet [89]
4 years ago
6

Which of the following are examples of cephalopods? a. squid's b. jellyfish c. cuttlefish d. both a and c

Biology
2 answers:
aleksklad [387]4 years ago
7 0

Explanation:

Cephalopods are organisms tha belong to the class Cephalopoda, which is composed by squids, octopus and nautilus.

The options we have are squids, jellyfish and cuttlefish. The two last ones do not belong to the Cephalopoda class, and also do not have the characteristics to be considered one.

Answer:

A.

Hope it helped,

BioTeacher101

dlinn [17]4 years ago
3 0

Answer:

d. both a and c

Explanation:

Cephalopods are aquatic organisms that are invertebrates which means that they have no back bone. They are found mainly in marine water. They have tentacles which they use for movement and catching of their prey.

They are called Cephalopods because their tentacles and arms protrude out of their head. They reproduce sexually.

Examples of Cephalopods include Squid, Cuttlefish , Octopus.

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Help me please, Thanks;)
Anarel [89]
Choose mars and some easy research and photos of mars should help
I had something similar and did mars, very easy:)
goodluck
6 0
3 years ago
A genetic cross with two genes produces 400 offspring, and 20 of them have recombinant phenotypes. What is the recombination fre
sp2606 [1]

Linkage refers to the tendency of inhertance of the DNA sequences that are close together on a chromosome during the meiosis of sexual reproduction. It can be measured by the recombination frequency.

Recombination frequency describes the proportion of recombinant offsrpring produced in a genetic cross between two organisms. It is the frequency with which a single chromosomal cross over takesplace between two genes during the process of meiosis. Recombination frequency (RF) is given by

RF= Recombinants /total offspring  x 100.

In the above example, the number of recombinant offspring is 20 and the total offspring is 400. By substituting these values,

RF= 20/400 x100

= 5.

The recombination frequency for the above cross is 5.


6 0
4 years ago
Which correctly lists the three gases that are part of Earth’s cycles in both the atmosphere and biosphere? radon, carbon monoxi
serg [7]

The three gases that are part of Earth’s cycles in both the atmosphere and biosphere are:

  • oxygen
  • - nitrogen
  • - carbon dioxide

<h3>Explain your answer?</h3>

The oxygen,  nitrogen, and carbon dioxide are the three gasses that are constantly moving through the atmosphere and biosphere in their own respective cycles.

The oxygen is used by the animals for breathing, but it is also released as a byproduct by the producers. The nitrogen is used as a food source for the producers, as well as the carbon dioxide which is crucial for the process of photosynthesis.

Thus, Part of them is released through decomposition, part by releasing them in the atmosphere or in the soil.

To learn more about gases click here:

brainly.com/question/1369730

#SPJ1

8 0
2 years ago
Why are scientists who are searching for life on other planets studying Archaebacteria
Svetlanka [38]

On a very simple level, the answer should be that archaebacteria developped in climates, atmospherical conditions, temperatures, physical and chemical environments that were in some ways different from those that characterize Earth today. So, it is reasonable that planets with conditions like those of Earth when archaebacteria developped might bear some form of life similar to archaebacteria, or evolved from those organisms.

6 0
3 years ago
What are the two thing needed for cellular respiration
Tasya [4]
Oxygen and glucose are the two things needed for cellular respiration.
6 0
4 years ago
Read 2 more answers
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