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dexar [7]
3 years ago
5

Which of the following have a backbone? -fish -jellyfish -grasshopper -octopus

Biology
1 answer:
nikitadnepr [17]3 years ago
4 0

fish has a backbone....

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The rate of a physical or chemical process
Nady [450]

Answer:

(A) rate=

Sp

Ss

st

Explanation:

The rate of chemical is a measure of the speed of a chemical reaction.

The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.

Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.

During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.

Reaction rate  = \frac{change  in concentration of a reactant/product}{Time taken}

4 0
3 years ago
Use this portion of a dichotomous key for tree identification to answer the question.
Charra [1.4K]

Answer:

They are nonlobed, simple leaves and are attached oppositely on the branch.

Explanation:

A dichotomous key is a tool you use in biology to know the identity of things in nature such as trees,flowers, fish or even rocks. This key has choices that follow each other in a progressive manner, where one choice led to the other until you identify the item.In this case, to identify Dogwood, you follow the below steps;

1b. Broad leaf = Step 2

2b. Simple leaf = Step 7

7a. Leaf bases attached opposite each other on branch = Step 8

8b. Leaves not lobed = Step 9

9b. Leaves not heart shaped = Dogwood

The key is (1b,2b,7a,8b,9b)

8 0
3 years ago
what type of plate boundary could form a mountain chain of sedimentary rock???PLEASE HELP WITH THIS QUESTION?NEED ANSWER SOON!!A
slava [35]
Divergent boundary of <span>oceanic crust  and continental crust</span>
Hope this helped :)

5 0
3 years ago
Read 2 more answers
take a look at the fossil made with amber on page 30. how are they formed and what features of the organisms are preserved in Am
bagirrra123 [75]
Tree sap getting hardened
100,000,000 years ago there were mosquitoes like today and also like today they fed on the blood on animals. Namely dinosaurs
Sometimes after biting a dinosaur they’d land on a branch of a tree and get stuck in its sap
4 0
3 years ago
DO NOT POST LINKS
STatiana [176]

Answer:The correct answer is letter A.

Explanation: he is right

Your teacher gives you an unknown protist to classify that is currently inactive. The protist appears to have long lash-like

appendages protruding from its cell surface. Which kind of locomotion can we expect from this protist? (1 point)

The appendages of this protist will move in a dragging motion that actively pulls the protist forward.

O The appendages of this protist will move in a sweeping motion like oars to actively propel the protist forward.

The appendages of this protist will move back and forth like a wagging tail to actively propel the protist

forward

O The appendages of this protist are not functional, and the protist moves passively via environmental forces.

6 0
3 years ago
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