1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
liraira [26]
3 years ago
12

Which of the listed relationships between groups is correct?

Biology
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

A. Chelicerates are a group of arthropods

E. Sea urchins are a group of echinoderms

B. Gastropods are a group of mollusks

Explanation:

Chelicerates are primitive arthropods having 6 pairs of appendages. 1 oral appendage used for feeding and lack actual mouth parts for chewing up "suck up predigested food". Cephalothorax is the largest and Abdomen contains gills.

Sea urchins are a group of echinoderms as they have spin skin , all marine and found in the bottom of the sea.

Gastropods are the largest and most varied group of molluscs. Gastropod means stomach footed, a typical gastropod is a coiled mass of organs enclosed in a dorsal shell, which rests on the foot having a head ans sensory structures on head and having an operculum.

You might be interested in
Axons insulated by a(n) _____ are able to conduct impulses faster that those not so insulated.
Mumz [18]

Answer:

Much like the insulation around the wires in electrical systems, glial cells form a membraneous sheath surrounding axons called myelin, thereby insulating the axon. This myelination, as it is called, can greatly increase the speed of signals transmitted between neurons (known as action potentials).

Explanation:

for more pls visit

https://www.nature.com/scitable/topicpage/myelin-a-specialized-membrane-for-cell-communication-14367205/

7 0
3 years ago
Carbon in the ocean onginates from the atmosphere.<br> T or D?
MrMuchimi

Answer: The process call photosynthesis by tiny marine plants converts carbon into organic matter.

Explanation:

3 0
3 years ago
Read 2 more answers
How to find the group number and periodic number
bulgar [2K]

Answer:

they are two different things man your going to have to give me more info .

Explanation:

hope this helps.

7 0
3 years ago
Read 2 more answers
Explain each of the following, giving a named example in each case:
gogolik [260]
(a) solute = substance (solid or liquid) in lesser amount, which will [dis]solve into the solvent

(b) solvent = substance (liquid) in larger amount, which [dis]solves the solvent
it's dissolvability is called "solvency"
water is known as the universal solvent because it is abundant on Earth and has a high solvency

(c) solution = the combination of solvent + solute
depending on the saturation of solute within solvent, the solution may appear clear, like the solvent

**think of warm sugar-water (solution), when all the sugar (solute) dissolves into the water (solvent), the solute seems to have disappeared
5 0
3 years ago
Write the hardy-weinberg equation and list the conditions a population must meet to maintain the hardy weinberg equilibrium. exp
Artyom0805 [142]

1. p^{2} +2pq+q^{2} =1 where in a population:

p - the frequency of the <em>A</em> allele

q - the frequency of the <em>a</em> allele

p^{2} - the frequency of the <em>AA</em> homozygous genotype

q^{2} - the frequency of the <em>aa</em> homozygous genotype

2pq - the frequency of the <em>Aa</em> heterozygous genotype

A population at equilibrium will have the sum of all the alleles at the locus equal to 1.

2. Conditions:

A. The breeding population must be large

B. No natural selection

C. The mating must occur randomly

D. No mutations to cause changes in allelic frequency.

E. No changes in allelic frequency due to immigration or emigration.

3. By comparing the actual genetic structure of a population with what we would expect from a Hardy-Weinberg equilibrium, we can determine how much it deviates from the baseline provided by the mathematical model. Depending on how large the deviation is, one or more of the model's assumptions are being violated. Thus, we can attempt to determine which one.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Organisms in an ecosystem are interdependent. Do you think humans have interdependent relationships with other organisms? Explai
    12·2 answers
  • Be-19 what must a type iii marine sanitation device have when boating on inland waters?
    6·2 answers
  • Help! will mark if answered asap and correctly
    11·1 answer
  • What does the word ecosystem refer to?
    6·1 answer
  • Bacteria adapt more quickly than elephants to environmental changes. which best explains this difference?
    14·1 answer
  • I’m leaning towards C but then again I don’t know. I’m probably wrong
    13·2 answers
  • Name the type of element that has luster, conducts electricity and is malleable
    8·1 answer
  • Woven bone Select one: a. has its collagen fibers randomly oriented. b. has a porous appearance. c. is organized into thin sheet
    11·1 answer
  • Contrast the major differences between the organization of DNADNA in viruses and bacteria versus eukaryotes. Drag the appropriat
    6·1 answer
  • Which describes the two ways that energy is measured?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!