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
Pepsi [2]
3 years ago
9

The periodic table

Biology
1 answer:
EleoNora [17]3 years ago
6 0

Answer:

D.)

Explanation:

The periodic table is divided into vertical periods and horizontal groups.

You might be interested in
HELP ME where do you find a half life HELP PLZ 26 points if you help me this hard Question is on my science thing test HELP
Serjik [45]

N(t)=final quality

N.=initial quality

N(t) n.(1/2) t/t 1/2

7 0
3 years ago
Rabbits, turtles, fish, humans, and whales all share certain characteristics but also differ from each other. All of these speci
Delvig [45]

<u>The levels of organisation are</u>

Domain: Eukarya

Kingdom Animalia

Phylum :Chordata

Explanation:

They all share these levels of organisation because;

<u>for  the Domain Eukarya, they have;</u>

→multi-cellular cells containing   nucleus; and  other membrane bound organelle.e.g Mitochondrial.

→their  DNA located in the   nucleus  packaged as linear chromosomes bounded by histone proteins.

→mode of reproduction which is  sexual.

They share Kingdom Animalia because;

→they have multi-cellular, specialised cells, bounded by plasma membranes.

→they have specialized  tissues, organs, and system.

→they all undergo <u>heterotrophic mode of nutrition</u> <u>as evident in the question 'that they must consume plants and animals as source of energy'</u>

<u>→they exchanged communication by nervous ssytem and </u>

<u>→ use homeostatic mechanisms to regulate water balance of the body through the kidney.</u>

<u>→Humans,Rabbits,and whales are</u><u> VIVIPAROUS; they give birth to young ones alive.</u>

→Most fishes lay eggs to reproduce, they are said to be <u>Ovoviviparous.</u>

<u>They belong to phylum Chordata because ;</u>

<u>→they  all have noto chord;</u> which serve as template for axial skeleton.

<u>dorsal hollow nerve cord </u>-template for the brain and spinal cord

<u>→pharyngeal slits- </u>templates for gill aches in bony fishes and components of inner ear in land animals.

<u>→ tail</u> length varies  in these organisms.

8 0
3 years ago
Explain why the tongue can be considered the muscle with the greatest strength endurance.
ZanzabumX [31]
The tongue has been considered as the strongest muscle yet it is a group of muscles. This is because it does not stop working. It is use if someone is eating, drinking, pushing the food as well as the liquid down to the throat and works to keep saliva out of one's mouth.
8 0
3 years ago
Read 2 more answers
There is a normal distribution of traits seen in natural selection, where the medium trait is favored.
Contact [7]

Answer:

<em>The correct option is B) the total variety of organisms on Earth</em>

Explanation:

Biodiversity can be described as the diversity or variety of life present on Earth. The variety of plants and animals which are located in different habitats make up the biodiversity. Biodiversity is the reason that different variety exist between members of a species. Biodiversity tends to favour those organisms which are better adapted to live in an environment. These organisms tend to pass on their characteristics to their offsprings and become more in number.

7 0
3 years ago
Read 2 more answers
Timeline of the development of cell theory
Kisachek [45]

Answer:

From the years 1838-1839, the German scientist Matthias Schleiden proposed the first foundational belief about cells, that all plant tissues are composed of cells. ... The image above shows a drawing of the microscope set up used by Robert Hooke in 1665 in which he first saw cells in a thin slice of cork.

6 0
3 years ago
Other questions:
  • What are some factors that would promote the gtowth of a town into a large city?
    7·1 answer
  • Q2: A human-made object
    10·1 answer
  • What does it mean to say that double-stranded nucleic acids are<br> antiparallel?
    12·1 answer
  • Where is most of a healthy persons fat stored
    10·2 answers
  • Which change in a limiting factor would increase the carrying capacity for american pikas in a talus field within an alpine tund
    12·1 answer
  • What is a camel with two humps called
    8·2 answers
  • True or false? The FLSA classifies employees as exempt or nonexempt from earning overtime pay for hours worked in excess of 50 h
    10·2 answers
  • Although farmers once used only organic fertilizers to replenish nutrients in the soils, some have been replaced with synthetic
    11·1 answer
  • Describe animal interactions that affect populations in the tundra ecosystem. (Please help please... I have already had a mental
    6·1 answer
  • According to the theory of evolution by natural selection, which of these statements is correct?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!