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
Zarrin [17]
3 years ago
5

Which of the phyla has bilateral symmetry?

Biology
2 answers:
Svetach [21]3 years ago
6 0
Arthropods has the bilateral symmetry !
so answer is B !
zepelin [54]3 years ago
5 0

Answer: A. porifera

Explanation: it has radial symmetry it starts at the center and grows its way out away from the center

You might be interested in
Imagine that beak color in a finch species is controlled by a single gene. you mate a finch homozygous for orange (pigmented) be
forsale [732]
Codominance or incomplete dominance is the answer in this question. This pattern of color expression is most likely to be an example of incomplete dominance or codominance. Codominance is defined as a form of dominance wherein the alleles of a gene pair in a heterozygote are fully expressed. Incomplete dominance on the other hand is a form of intermediate inheritance in which one of the allele for a specific trait is incompletely expressed over its paired allele.
4 0
3 years ago
1. What causes the autorhythmicity or action potentials of the nodal cells? a. A decrease in chloride permeability b. A gradual
Sveta_85 [38]

Answer:

The correct answer will be option-C

Explanation:

The rhythm of the heartbeat is controlled by the pacemaker of the heart called the sino-atrial node.

The SA node generates action potentials which trigger the contraction and relaxation of the atrium and ventricles. The membrane potential generation initiates by the depolarization of the cell membrane when the L type of Ca⁺² ions opens up and calcium ions enter the cell.

This depolarizes the cell until the potential threshold is reached which lies between the -40 and -30 mV.

Thus, Option-C is the correct answer.

5 0
3 years ago
Examine the photograph of a prepared slide of the root cross section. Notice that the section is circular in outline since it wa
Doss [256]
The stem has more things to transport that's why it has more vascular bundles. The roots only get water from the ground and moving nutrients from the soil to transfer it to the stem. Having more vascular bundles helps the stems to transfer things to leaves and other parts of the plants.
3 0
3 years ago
How does the polymerase chain reaction make DNA fingerprinting more reliable?
Triss [41]
The polymerase chain reaction makes DNA fingerprinting more reliable because it allows scientists to quickly make many copies of DNA the answer is C
5 0
3 years ago
Read 2 more answers
The total number of organisms an ecosystem can support is its tolerance range. True or false
Monica [59]

Answer;

The above statement is false

The total number of organisms an ecosystem can support is its carrying capacity.

Explanation;

-Carrying capacity is the average population density or population size of a species below which its numbers tend to increase and above which its numbers tend to decrease because of shortages of resources.

-For a given region, carrying capacity is the maximum number of individuals of a given species that an area's resources can sustain indefinitely without significantly depleting or degrading those resources.

The carrying capacity is different for each species. in a habitat because of that species’ particular food, shelter, and social requirements.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The root word terra means “land” or “territory.” Terrestrial planets are the planets closest to the Sun. Why are they are called
    15·2 answers
  • How does this help them maitain internal homeostasis in hot climates
    12·1 answer
  • The what in the brain is divided into two hemispheres <br><br><br>help fast​
    10·1 answer
  • How do mutations cause genetic variation?
    7·2 answers
  • which question most closely relates to the fosters observation and the collective scientific data on forest
    11·1 answer
  • Which of the following is NOT a property that affects weather? A. Temperature B.Moisture C. Pressure D. Time​
    5·1 answer
  • What do these two changes have in common?
    6·1 answer
  • When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide (H2O2) decompo
    5·2 answers
  • Chuckwalla is a large herbivorous lizard of the southwestern United States and northwestern Mexico. A scientist discovered varia
    6·1 answer
  • Tmp/smx has two components that act on different steps in the folic acid biosynthesis pathway and are thus used together. sulfam
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!